| EPSRC Reference: |
GR/L41806/01 |
| Title: |
A WORKSTATION TO INVESTIGATE THE DYNAMICS OF ATOMS, MOLECULES AND SEMICONDUCTOR DEVICES |
| Principal Investigator: |
Monteiro, Professor T |
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| Department: |
Physics and Astronomy |
| Organisation: |
UCL |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 November 1995 |
Ends: |
31 October 1998 |
Value (£): |
21,879
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Summary on Grant Application Form |
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The workstation will be used mainly for quantal and classical calculations on atomic and molecular systems in external fields and the related problem of chaos in resonant tunnelling diodes. We have developed a theoretical model for core-scattering atomic and molecular systems ie which display some characteristics of systems with a chaotic classical limit but actually represent combination of regular motion and quantum scattering. They are receiving considerable attention from experimentalists. It is proposed to apply our model in numerical calculations with a view to further understanding of these results. This will involve visualisation of Quantum scarring using Wigner & Husimi functions. this will involve visualisation of complex wave functions in phase-space, requiring high-quality graphics. We will investigate the effects of ghost-orbits (orbits which affect quantal spectra at energies below that which they are born) in scars and core-scattering systems. We propose also to investigate a problem in semiconductor physics which exhibits chaos and shows many similarities with the hydrogen atom in a magnetic field. In particular we have been able to adapt techniques used widely in atomic quantum chaology (eg rescaled dynamical variables) which will permit for the first time, detailed quantitative analysis of this system in terms of periodic orbit theory.
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Key Findings |
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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